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zvonat [6]
3 years ago
12

What is the change of entropy for a heat engine using 500.0j at 20.0c

Mathematics
2 answers:
ExtremeBDS [4]3 years ago
8 0

The formula to find change in entropy is given by :

Change in entropy = \frac{Q}{T}

where Q is change in heat and T is temperature.

We are given Q = 500 joule and T = 20 degree C

Plugging these values in the formula,

Change in entropy = \frac{500}{20}

We get change in entropy = 25 J/Celsius.


Natasha_Volkova [10]3 years ago
3 0
1.71 J/K 
hope it helps :D!!
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8 0
2 years ago
The following function represents the value of a motorcycle, in dollars, after x years: f(x) = 19,000(0.91)x
Semenov [28]

Answer:

Option C.The decrease in the value of the motorcycle, which is 9%

Step-by-step explanation:

we have a exponential function of the form

f(x)= ab^x

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If b >1 then it is an exponential growth

if 0<b<1 then it is an exponential decay

In this problem

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7 0
3 years ago
Read 2 more answers
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