Question

A thermos flask contains coffee. It is violently shaken. Considering the coffee as a system answer the following:

a) Does the temperature rise?
b) Has heat been added to it?
c) Has internal energy
changed?​

Answer 1

Answer:

A. Yes

B. Yes

C. No

Explanation:

I hope it helps you

Brainliest please

Answer 2

a) Yes

• Because of increase in its internal energy.

b) No

• As the flask is insulated.
• dQ = 0

c) Yes

• Internal energy increased.

From First law of thermodynamics

• dU = dQ - dW