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Q: When heat flows into a system its value is positive. When heat flows of a system its value is negative.?

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when heat flows Out of a system

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positive < Mitzy >

heat. apex.

Heat is energy and cannot be negative, If you are talking about heat flow then if you define outflow to be negative then inflow is positive.

No, the product of the multiplication of a positive and a negative value is negative.

If, and only if the positive value is > the negative value.

Negative

If the absolute value of the negative is bigger than that of the positive, then the answer is negative. If the absolute value of the negative is the same, then zero. If the absolute value of the negative is smaller, then positive. Absolute value is the value ignoring the sign.

There is no negative of zero, nor is there a positive. Zero is no value, hence it has no positive or negative value.

the absolute value for a negative or positive value is always positive

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