64 648
Assignments Done
99,2%
Successfully Done
In September 2018

Answer to Question #72257 in Molecular Physics | Thermodynamics for Pratham

Question #72257
Hi, I have multiple questions on Physics, as I am struggling at physics. These are my questions.
1. A hot block of iron does 50 kJ of work on a cold floor. The block of iron also transfers 20 kJ of heat energy to the air. Calculate the change in energy (in kJ) of the iron block.

2. A chef vigorously stirs a pot of cold water and does 150 J of work on the water. The water also gains 75 J of thermal energy from the surroundings. Calculate the change in energy of the water.

And can you guys please tell me how do you calculate it and what theory applies to me and all the other basics.
Thanks
Expert's answer

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question

Submit
Privacy policy Terms and Conditions