Question:-
A one ton capacity water cooler cools water steadily from 35°C to 20°C. The specific heat of water is 4.18 kJ/(kg K). The water flow rate will be, nearly
Option (A)
13.33 l/hr
Option (B)
33.3 l/hr
Option(C)
200 l/hr
Option(D)
250 l/hr
Correct Option:
(C)
Question Solution:
1TR = 3.5 kW
3.5 = m x 4.18 x 15
\ m = 0.05582 kg/sec
= 0.05582 x 10-3m3/sec = 200 lit/hr
question-answer-faq-9425