Answer:
NOT WISE
Explanation:
given,
T₁ = 87⁰C = 273 + 87 = 360 K
T₂ = 27⁰C = 273 + 27 = 300 K
work output given = 10 J
efficiency will be equal to :
[tex]\eta = 1 - \dfrac{T_2}{T_1}\\\eta = 1 - \dfrac{300}{360}\\\eta = 0.166[/tex]
output delivery = η ₓ input
= 0.166 ₓ 40
= 6.66 J
hence, the output of new engine is less than the old one so, investing in new engine will not be feasible.