Ajeweler is heating a gold bar. it takes 7 joules of heat to raise the temperature of the bar 1°c. the initial temperature of the bar is 25°c. how many joules of heat would be required to raise the temperature of the gold bar to 26°c, 27°c, 28°c, 29°c, 30°c, and 35°c?

We are given that it takes 7 joules of heat to raise the temperature of the bar by 1°C. Therefore this means that the heating capacity Cp is:

Cp = 7 J / °C

The formula for the amount of heat required is:

heat = Cp (Tf – Ti)

where Ti is initial temperature = 25°C, and Tf is the final temperature

When Tf = 26°C

heat = 7 (26 – 25) = 7 J

When Tf = 27°C

heat = 7 (27 – 25) = 14 J

When Tf = 28°C

heat = 7 (28 – 25) = 21 J

When Tf = 29°C

heat = 7 (29 – 25) = 28 J

When Tf = 30°C

heat = 7 (30 – 25) = 35 J

When Tf = 35°C

heat = 7 (35 – 25) = 70 J

answer: 2 answers

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the second means the process of making a product or service available for the consumer or business user that needs it.

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step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

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factorizing, we get that:

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then, the solutions are: or

nothing extraneous has been found!