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Anna11 [10]
3 years ago
6

If it take 118j of heat to increase the temperature of a 5.0g block of silver by 15 c, what is the specific heat capacity

Chemistry
1 answer:
KatRina [158]3 years ago
7 0
Q=mc(delta)T
118=0.005×c×15
c=118/(0.005×15)

c= 1573 J/kg/C
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A gas has a volume of 490. mL at a temperature of -35.0 degrees C. What volume would the gas occupy at 42.0 degrees Celsius? Ple
miskamm [114]

Answer:

648.5 mL

Explanation:

Here we will assume that the pressure of the gas is constant, since it is not given or specified.

Therefore, we can use Charle's law, which states that:

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Mathematically:

\frac{V}{T}=const.

where

V is the volume of the gas

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The equation can be rewritten as

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where in this problem we have:

V_1=490 mL is the initial volume of the gas

T_1=-35.0^{\circ} + 273 = 238 K is the initial temperature

T_2=42.0^{\circ}+273=315 K is the final temperature

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8 0
4 years ago
Inclined planes reduce the amount of effort needed to move an object, but increases
QveST [7]

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As it is known that an object can be easily moved on an inclined plane than on a vertical plane, this is because, the inclined plane provides greater output force. But in that case, the effort required will be reduced with the cost of increasing the distance of the movement of object.

In other terms , the ramp's length of inclined planes has to get increased in order to reduce the amount of effort needed to move an object. This is because as the mechanical advantage has length of the ramp in the numerator, with the increase in numerator value or length value the mechanical advantage will also increase.

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if you want to name an organism you use both the genus group and the spec!es group

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7 0
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