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The slopes of constant volume and constant pressure lines in the T-s diagram are _______ and _________ respectively.
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ds = CP 
dt T -
dt = CP ds T -
ds + CP dt T -
ds + T dt CP
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Correct Option: B
Tds = du + pdv
Constant volume
Tds = dv (dv = 0)
Tds = CVdt
 | = |  | .......(i) | ||
| ds | T |
Tds = du – vdp
Constant pressure
| = | | ....(ii) | ||
| ds | T |
