100% tevredenheidsgarantie Direct beschikbaar na je betaling Lees online óf als PDF Geen vaste maandelijkse kosten
logo-home
Eerder door jou gezocht
Eerder door jou gezocht
logo
Chemistry Straighterline Exam With 100% Correct Answers Latest Update 2024/2025 Questions and Answers €13,24
In winkelwagen
Snel navigeren naar
Voorbeeld
  2.  
  3. Straighterline Chemistry
  4.  
  5. Straighterline Chemistry

Tentamen (uitwerkingen)

Chemistry Straighterline Exam With 100% Correct Answers Latest Update 2024/2025 Questions and Answers
 0 keer verkocht
  • Vak
  • Straighterline Chemistry
  • Instelling
  • Straighterline Chemistry

CHEMISTRY STRAIGHTERLINE EXAM An endothermic reaction causes the surroundings to: A. warm up B. become acidic C. condense D. decrease in temperature E. release CO2 - Correct Answer-D An exothermic reaction causes the surroundings to: A. warm up B. become acidic C. expand D. decrease ...

[Meer zien]

Voorbeeld 4 van de 78  pagina's

Document informatie

  • 26 augustus 2024
  • 78
  • 2024/2025
  • Tentamen (uitwerkingen)
  • Vragen en antwoorden

Onderwerpen

  • chemistry straighterline
  • chemistry straighterline exam with 100 correct
  • chemistry straighterline exam
  • straighterline chemistry exam
  • an endothermic reaction causes the surroundings to

Geschreven voor

  • Straighterline Chemistry
  • Straighterline Chemistry

Verkoper

avatar-seller
ATIQUIZ

Ontvangen beoordelingen

Voorbeeld van de inhoud

Chemistry
Straighterline Exam
With 100% Correct
Answers
Latest Update
Questions and Answers



CHEMISTRY STRAIGHTERLINE EXAM

,An endothermic reaction causes the surroundings to:
A. warm up
B. become acidic
C. condense
D. decrease in temperature
E. release CO2 - Correct Answer-D

An exothermic reaction causes the surroundings to:
A. warm up
B. become acidic
C. expand
D. decrease its temperature
E. release CO2 - Correct Answer-A

Copper metal has a specific heat of 0.385 J/g•oC and has a melting point of 1083oC.
calculate the amount of heat required to raise the temperature of 22.8 g of Cu from
20.0oC to 875oC.
A. 1.97 10 ─ 5 J
B. 1.0 10 ─ 2 J
C. 329 J
D. 7.51 kJ
E. 10.5 kJ - Correct Answer-D

Calculate the amount of heat necessary to raise the temperature of 12.0 kg of water
from 15.4oC to 93.0oC.
A. 0.027 kJ B. 324 kJ C. 389 kJ D. 931 kJ
E. 3890 kJ - Correct Answer-E

How much heat is required to raise the temperature of 1500 g of water from 25oC
to 52oC?
A. 1500 kJ B. 169 kJ C. 6.27 kJ D. 40.5 J E. 40.5 kJ - Correct Answer-B

How many degrees of temperature rise will occur when a 25.0 g block of aluminum
absorbs 10 kJ of heat? The specific heat of Al is 0.900 J/g•oC.
A. 0.44oC B. 22.5oC C. 225oC D. 360oC E. 444oC - Correct Answer-E

If 325 g of water at 4.2oC absorbs 12.28 kJ, then what is the final temperature of the
water?
A. 4.21oC B. 4.8oC C. 9.0oC D. 13.2oC E. 2938oC - Correct Answer-D

A glass containing 200 g of H2O at 20oC was placed into a refrigerator. The water loses
11.7 kJ as it cools to a constant temperature. What is its new temperature?
A. 0.013oC B. 4oC C. 6oC D. 14oC E. 34oC - Correct Answer-C

A piece of copper with a mass of 218 g has a heat capacity of 83.9 J/oC. What is the
specific heat of copper?

,A. 0.385 J/g•oC B. 1.83 ´ 104 J/g•oC C. 2.60 J/g•oC D. 1.32 J/g•oC
E. 24.5 J/g•oC - Correct Answer-A

The specific heat of gold is 0.129 J/g•oC. What is the molar heat capacity of gold (unit is
J/mol•oC)?
A. 0.039 J/mol•oC
B. 0.129 J/mol•oC
C. 25.4 J/mol•oC
D. 39.0 kJ/mol•oC
E. 197 J/mol•oC - Correct Answer-C

When 0.7521 g of benzoic acid was burned in a calorimeter containing 1000 g of water,
a temperature rise of 3.60oC was observed. What is the heat capacity of the bomb
calorimeter, excluding water? The heat of combustion of benzoic acid is ─26.42 kJ/g.
A. 15.87 kJ/oC
B. 4.18 kJ/oC
C. 5.52 kJ/oC
D. 1.34 kJ/oC
E. 752.1 kJ/oC - Correct Answer-D

Naphthalene combustion can be used to determine the heat capacity of a bomb
calorimeter. The heat of combustion of naphthalene is 40.1 kJ/g. When 0.8210 g of
naphthalene was combusted in a calorimeter containing 1000 g of water a temperature
rise of 4.21oC was observed. What is the heat capacity of the bomb calorimeter
excluding the water?
A. 32.9 kJ/oC
B. 7.8 kJ/oC
C. 1.76 kJ/oC
D. 1.76 kJ/oC
E. 15.3 kJ/oC - Correct Answer-C

Which of the following processes is endothermic?
a. O2(g) + 2H2(g) 2H2O(g)
b. H2O(g) H2O(l)
c. 3O2(g) + 2CH3OH(g) 2CO2(g) + 2H2O(g)
d. H2O(s) H2O(l) - Correct Answer-D

A 100 mL sample of 0.200 M aqueous hydrochloric acid is added to 100 mL of 0.200 M
aqueous ammonia in a calorimeter whose heat capacity is 480 J K ─ 1. The following
reaction occurs when the two solutions are mixed.
HCl(aq) + NH3(aq) NH4Cl(aq)
The temperature increase is 2.34oC. Calculate ΔH per mole of HCl neutralized.
A. 154 kJ B. 44.5 kJ C. 22.5 kJ D. ─22.5 kJ E. ─56.2 kJ - Correct Answer-E

A 0.1326 g sample of magnesium was burned in an oxygen bomb calorimeter. The
Htotal heat capacity of the calorimeter plus water was 5760 J/oC. If the temperature rise

, of the calorimeter with water was 0.570oC, calculate the enthalpy of combustion of
magnesium.
Mg(s) + 1/2O2(g) MgO(s)
A. ─3280 kJ/mol B. ─24.8 kJ/mol C. 435 kJ/mol
D. 106 kJ/mol E. ─602 kJ/mol - Correct Answer-E

Which one of the following reactions occurring at 25oC does the symbol ΔHof[H2SO4(l)]
refer to?
A. 2H(g) + S(g) + 4O(g) H2SO4(l)
B. H2(g) + S(g) + 2O2(g) H2SO4(l)
C. H2SO4(l) H2(g) + S(s) + 2O2(g)
D. H2SO4(l) 2H(g) + S(s) + 4O(g)
E. H2(g) + S(s) + 2O2(g) H2SO4(l) - Correct Answer-E

Which one of the following reactions occurring at 25oC does the symbol ΔHof[HNO3(l)]
refer to?
A. H(g) + N(g) + O3(g) HNO3(l)
B. 1/2H2(g) + 1/2N2(g) + 3/2O2(g) HNO3(l)
C. HNO3(l) 1/2H2(g) + 1/2N2(g) + 3/2O2(g)
D. HNO3(l) H(g) + N(g) + 3O(g)
E. H2(g) + N2(g) + O3(g) HNO3(l) - Correct Answer-B

When 0.56 g of Na(s) react with excess F2(g) to form NaF(s) at standard state
conditions, 13.8 kJ of heat
are evolved. What is the standard enthalpy of formation (ΔHof) of NaF(s)?
A. 24.8 kJ/mol B. +570 kJ/mol C. ─24.8 kJ/mol D. ─7.8 kJ/mol
E. ─570 kJ/mol - Correct Answer-E

Ethanol undergoes combustion according to the equation:
C2H5OH(l) + O2(g) CO2(g) + H2O(l) (Not Balanced)
The standard heat of combustion of ethanol, C2H5OH(l), is ─1366.8 kJ/mol. Given that:
ΔHof[CO2(g)] = ─393.5 kJ/mol
ΔHof[H2O(l)] = ─285.8 kJ/mol
What is the standard enthalpy of formation of ethanol?
A. 3010 kJ
B. ─687.6 kJ
C. ─277.6 kJ
D. 687.6 kJ
E. 1367 kJ - Correct Answer-C

Find the standard enthalpy of formation of ethylene, C2H4(g), given the following data:
C2H4(g) + 3O2(g) 2CO2(g) + 2H2O(l) ΔHof = ─1411 kJ
C(s) + O2(g) CO2(g) ΔHof = ─393.5 kJ
H2(g) + 1/2O2(g) H2O(l) ΔHof = ─285.8 kJ
A. 52 kJ
B. 87 kJ

Dit zijn jouw voordelen als je samenvattingen koopt bij Stuvia:

Bewezen kwaliteit door reviews

Bewezen kwaliteit door reviews

Studenten hebben al meer dan 850.000 samenvattingen beoordeeld. Zo weet jij zeker dat je de beste keuze maakt!

In een paar klikken geregeld

In een paar klikken geregeld

Geen gedoe — betaal gewoon eenmalig met iDeal, Bancontact of creditcard en je bent klaar. Geen abonnement nodig.

Focus op de essentie

Focus op de essentie

Studenten maken samenvattingen voor studenten. Dat betekent: actuele inhoud waar jij écht wat aan hebt. Geen overbodige details!

Veelgestelde vragen

Wat krijg ik als ik dit document koop?

Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.

Tevredenheidsgarantie: hoe werkt dat?

Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.

Van wie koop ik deze samenvatting?

Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper ATIQUIZ. Stuvia faciliteert de betaling aan de verkoper.

Zit ik meteen vast aan een abonnement?

Nee, je koopt alleen deze samenvatting voor €13,24. Je zit daarna nergens aan vast.

Is Stuvia te vertrouwen?

4,6 sterren op Google & Trustpilot (+1000 reviews)

Afgelopen 30 dagen zijn er 63950 samenvattingen verkocht

Opgericht in 2010, al 15 jaar dé plek om samenvattingen te kopen

Start met verkopen

Laatst bekeken door jou

Voordeelbundel ·

(0)

Bundle:::American Board of Surgical Assistants exams 2024/2025 with Verified solutions | Already Graded

Tentamen (uitwerkingen) ·

(0)

CCDS IBHRE LATEST UPDATE ALREADY GRADED A Questions with 100% Correct Answers | Verified | Latest Update

Samenvatting ·

(0)

Samenvatting van alle hoorcolleges, werkcolleges en practica van Onderzoeksmethoden Thema 1 (BMW21010)

Tentamen (uitwerkingen) ·

(0)

MAP CERTIFICATION EXAM LATEST QUESTIONS AND CORRECT ANSWERS(VERIFIED ANSWERS)ALREADY GRADED A+2024/2025

Tentamen (uitwerkingen) ·

(1)

Test Bank for Psychology of Women and Gender 1st Edition By Miriam Liss, Kate Richmond, Mindy Erchull

Tentamen (uitwerkingen) ·

(0)

COMPLETE TEST BANK: Psychology: Modules for Active Learning 15th Edition by Dennis Coon Latest Update

Tentamen (uitwerkingen) ·

(0)

UNDERSTANDING PATHOPHYSIOLOGY, 5TH EDITION HUETHER AND MCCANCE TEST BANK | ANSWERS VERIFIED BY EXPERTS

Tentamen (uitwerkingen) ·

(0)

API 653: tank inspection, repair, alteration, and reconstruction Exam Questions and Answers (Latest 2025)

Tentamen (uitwerkingen) ·

(0)

WGU C214 OA Financial Management Exam Study Guide Questions and Answers Updated (2024/2025) (Verified Answers)

€13,24
  • (0)
In winkelwagen
Toegevoegd