Thermodynamics Quiz

Thermodynamics Quiz

University

25 Qs

quiz-placeholder

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Thermodynamics Quiz

Thermodynamics Quiz

Assessment

Quiz

Chemistry

University

Practice Problem

Hard

Created by

Belete Tesfaw

Used 1+ times

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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A system that doesn’t exchange matter or energy with its surroundings is __________.

adiabatic

isolated

isothermal

isobaric

isochoric

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A system suffers an increase in internal energy of 80 J and at the same time has 50 J of work done on it. What is the heat change of the system?

+130 J

+30 J

-130 J

-30 J

0 J

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate Ho for the reaction: Na2O(s) + SO3(g) Na2SO4(g) given the following information: Ho (1) Na(s) + H2O(l) NaOH(s) + 1/2 H2(g) -146 kJ (2) Na2SO4(s) + H2O(l) 2NaOH(s) + SO3(g) +418 kJ (3) 2Na2O(s) + 2H2(g) 4Na(s) + 2H2O(l) +259 kJ

+255 kJ

-435 kJ

-581 kJ

+531 kJ

-452 kJ

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An ideal gas differs from a real gas in that the molecules of an ideal gas

have no attraction for one another.

have a significant volume.

have a molar mass of zero.

have no kinetic energy

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A sample of oxygen occupies 47.2 liters under a pressure of 1240 torr at 25oC. What volume would it occupy at 25oC if the pressure were decreased to 730 torr?

27.8 L

29.3 L

32.3 L

47.8 L

80.2 L

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A real gas most closely approaches the behavior of an ideal gas under conditions of:

high P and low T

low P and high T

low P and T

high P and T

STP

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At a constant temperature, an ideal gas is compressed from 6.0 liters to 4.0 liters by a constant external pressure of 5.0 atm. How much work is done on the gas?

W = +10 liter atm

W = -10 liter atm

W = +30 liter atm

W = -30 liter atm

The answer cannot be calculated

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