Answer:
Tire inflation can be caused by temperature and speed :)
Work done = -19.7 KJ
Heat transferred = 17.4 KJ
Explanation:
Given-
Temperature, T = 27°C
Volume, V = 0.2 m³
Pressure, 
= 1 bar
= 4 bar
pV¹°¹ = constant
From superheated propane table, at = 1 bar and
= 27⁰C
= 0.557 m³/kg
= 473.73 KJ/kg
(a) Work = ?
We know,
V1¹°¹ = p2V2¹°¹
At = 4 bar and v = 0.158 m³/kg
u2 = 548.45K J/kg
To find work done in the process:
(b) Heat transfer = ?
Generally, frictional losses are more predominant for the machines being not 100% efficient. This friction leads to the loss of energy in the form of heat, into the surroundings. Some of the supplied energy may be utilised to change the entropy (measure of randomness of the particles) of the system.
Answer:
water released through the bottom of the reservoir in 24 hrs is 1992 ha-cm
Explanation:
Given the data in the question;
A = 200 hectare = 2 × 10⁶ m²
water evaporated Ve = 2 × 10⁶ m² × 3 × 10⁻² = 60000 m³ { in 24 hrs }
Water added by storm in 24hrs Vi = 3 × 24 × 3600 = 259200 m³
now let water released be Vr
ΔV = V_ini - V_final = 0
Vi - Ve - Vr = 0
Vr = Vi - Ve
Vr = 259200 m³ - 60000 m³
Vr = 199200 m³ = 19920000 m² - cm
Vr = 1992 ha-cm
Therefore, water released through the bottom of the reservoir in 24 hrs is 1992 ha-cm
