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liubo4ka [24]
3 years ago
6

. If an object’s mass is m=10. kg, what is its weight?

Chemistry
1 answer:
Hunter-Best [27]3 years ago
5 0
Its weight is = m×g = 10×9.8
= 98 kg.m/s^2
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It takes 11.2 kj of energy to raise the temperature of 145 g of benzene from 22.0°c to 67.0°c. what is the specific heat of benz
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We can use the heat equation,
Q = mcΔT 

where Q is the amount of energy transferred (J), m is the mass of the substance (kg), c is the specific heat (J g⁻¹ °C⁻¹) and ΔT is the temperature difference (°C).
Q = 11.2 kJ = 11200 J
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By applying the formula,
11200 J = 145 g x c x 45 °C
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