Understanding Heat and Temperature

Practice Questions

High School Physics › Understanding Heat and Temperature

Questions

A disc of copper is dropped into a glass of water. If the copper was at $85^\circ C$ and the water was at $70^\circ C$ , what is the new temperature of the mixture?

$c_{Cu}=0.092\frac{cal}{g^oC}$

$c_{water}=1.00\frac{cal}{g^oC}$

An ice cube at $0^\circ C$ melts. As it melts, constant temperature readings are taken and the sample maintains the temperature of $0^\circ$ throughout the melting process. Which statement best describes the energy of the system?

A silver spoon is placed in a cup of tea. If the spoon has a mass of and the tea has of mass, what is the final temperature of the spoon?

$c_{tea}=1.00\frac{cal}{g*K}$

$c_{silver}= 0.0558\frac{cal}{g*K}$

of soup at $80^\circ C$ cools down to $20^\circ C$ after . If the specific heat of the soup is $\small 3.67\frac{kJ}{kg^\circ C}$ , how much energy does the soup release into the room?

A vial of an unknown liquid is $9 8^\circ C$ . Julie adds of the same liquid at $40^\circ C$ to the vial. What is the final temperature?

of soup at $80^\circ C$ cools down after . If the specific heat of the soup is $\small 3.67\frac{kJ}{kg^\circ C}$ , and it released of energy into the room, what is the final temperature of the soup?

of soup cools down to $22^\circ C$ after . If the specific heat of the soup is $\small 3.67\frac{kJ}{kg^\circ C}$ , and it released of energy into the room, what was the initial temperature of the soup?

A sample of of water at $100^\circ C$ is placed in a ceramic mug, which is at $23^\circ C$ . What is the final temperature of the system?

$c_{ceramic}=1100\frac{J}{kg*^\circ C}$

$c_{water}=4.2\frac{J}{g*^\circ C}$

The temperature of an ideal gas is raised from $18.5^{\circ}C$ to $74.33^{\circ}C$ . If the volume remains constant, what was its initial pressure if the final pressure is ?

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