A) \[420J\]
B) \[2100J\]
C) \[772J\]
D) \[2520J\]
Correct Answer: A
Solution :
COP = \[\frac{{{T}_{1}}}{{{T}_{2}}-{{T}_{1}}}=\frac{250}{300-250}=5\] \[COP=5=\frac{{{Q}_{L}}}{W}\] \[W=\frac{500\times 4.184}{5}=420J\]You need to login to perform this action.
You will be redirected in
3 sec