Question
(a) How much waste heat is produced by an electrical power station that uses 1.05 multiplied by 1014 J of heat input with an efficiency of 40.0%?
(b) What is the ratio of waste heat to work output?
(c) How much work is done?
(b) What is the ratio of waste heat to work output?
(c) How much work is done?
Answers
Elena
η= 40% =>η =0.4
input heat Q₁=1.05•10¹⁴J
waste heat Q₂=0.6 Q₁=6.3•10¹³ J
Q₂/W=1.5
work W=0.4 Q₁=4.2•10¹³ J
input heat Q₁=1.05•10¹⁴J
waste heat Q₂=0.6 Q₁=6.3•10¹³ J
Q₂/W=1.5
work W=0.4 Q₁=4.2•10¹³ J