A-1 a well-insulated cylindrical tank of water with d = 3 m diameter is filled to a
depth of h = 6 m. it is desired to lower the temperature of the water in the tank
from t1 = 20◦c to t2 = 2◦c in two hours using a heat pump. heat is to be rejected
to the atmospheric at tamb =38◦c. what is the minimum average power that must
be supplied to achieve this cooling. state all assumptions that you employ.

it's all four options.

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o