Agas initially at 2.8 bar and 60°c is compressed to a final pressure of 14 bar in an isothermal internally reversible process. determine the work and heat transfer, each in kj per kg of gas, if the gas is
(a) refrigerant 134a,
(b) air as an ideal gas.
sketch the process on p-v and t-s coordinates.

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

you get 2.3=1.21*\frac{a}2 or 4.6=1.21a or a=3.802 (b)

explanation: