Consider the following program written in C syntax:

void swap (int a, int b) {
int temp;
temp = a;
a = b;
b = temp;
}
void main () {
int value = 2, list [5] = {1, 3, 5, 7, 9};
swap (value, list [0]);
swap (list[0], list[1]);
swap(value, list[value]);

for each of the following parameter-passing methods, what areall of the values of the variables value and list after each of thethree calls to swap?

a. Passed by value
b. Passed by reference
c. Passed by value-result

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.