A Solar Heating System Has a 25

question 9

Multiple Choice

A solar heating system has a 25.0% conversion efficiency;the solar radiation incident on the panels is 1000 W/m².What is the increase in temperature of 40.0-kg of water in a 1.00-h period by a 4.00 m² area collector? (c_w = 4186 J/kg · °C)

• A) 14.3°C
• B) 21.5°C
• C) 28.7°C
• D) 44.3°C

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Definitions:

\(k + 8\)

An algebraic expression representing the sum of a variable, \(k\), and the number 8.

\(d = \frac { 3 } { 7 }\)

Represents a specific value of the variable d, which is equal to the fraction three-sevenths.

\(d = 4\)

An equation representing that the value of the variable \(d\) is equal to 4.