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kondaur [170]
3 years ago
5

Which element of variation would not be affected by adding the data value 15 to the data set {3, 5, 6, 8, 9, 10, 13, 14}?

Physics
1 answer:
Anna11 [10]3 years ago
4 0
The answer to this would be 15
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When a certain ideal engine performs 2000 kJ of work, 4750 kJ of heat flows out of the engine at 275°C. (a) How much heat flows
PtichkaEL [24]

Answer:

a) Qh= 6750 kJ

b) e = 0.296

c) T_H = 390.625° C

Explanation:

Given:

Work done, W = 2000 kJ

Heat flow, Q = 4750 kJ

Temperature at which heat flows out, T_c = 275° C

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Qh = W + Q

or

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b) The efficiency (e) is given as:

e=\frac{W}{Q_h}

on substituting the values, we get

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c) e=1-\frac{T_c}{T_H}

where,

T_H is the temperature at which heat flow

on substituting the values, we get

0.296=1-\frac{275}{T_H}

or

T_H = 390.625° C

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