An engine operates in a carnot cycle that uses 1 mole of an ideal gas as the working substance and operates from a most compressed stage of 100 Nm^-2 and 327k, it expands iso thermally to a pleasure of 90Nm^-2 and then adeabatically to most expanded stage of 27k. Calculate the change in energy, the heat, the work done and the efficiency of the cycle?

2b2t

explanation:

2b2t

6.4 cm (max) - 25 cm (min)

pv=nrt

explanation:

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