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Keith_Richards [23]
2 years ago
8

What can you conclude about the relationship between height and energy?​

Chemistry
1 answer:
Bas_tet [7]2 years ago
7 0

Answer:

Since the gravitational potential energy of an object is directly proportional to its height above the zero position, a doubling of the height will result in a doubling of the gravitational potential energy. A tripling of the height will result in a tripling of the gravitational potential energy.

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The specific heat of gasoline is 2.22 J/g•°C. How much heat would it take to raise 35.0 G of gasoline to 3.00°C?
Olenka [21]
<span>To find the amount of heat energy required to raise a substance by a certain number of degrees, we simply multiply: (specific heat * change in temperature * mass) Heat = 2.22 * 35 * 3 = 233.1 joules Therefore, we would need 233.1 joules of heat to raise the temperature by 3 degrees Celsius.</span>
3 0
4 years ago
A heat releasing process.
Alisiya [41]
This reaction is called an exothermic reaction.
8 0
4 years ago
Calculate the density of nitrogen gas, in grams per liter, at stp.
lesantik [10]

Standard temperature is 273 K

Standard pressure is 1 atm

We use the ideal gas equation to find out density of nitrogen gas in g/L

Ideal gas equation:

PV = nRT\\  PV = (\frac{Mass}{Molar mass)}RT\\   P(Molar mass) = (\frac{Mass}{Volume})RT\\  \frac{Mass}{Volume}=\frac{P(molar mass)}{RT} \\  Density = \frac{P(Molar mass)}{RT}

Molar mass of N_{2} = 28 g/mol

Pressure = 1 atm

Temperature = 273 K

Density = \frac{(1atm)(28 g/mol)}{(0.08206 \frac{L.atm}{mol.K})(273 K)}

= 1.25 g/L

Therefore, density of nitrogen gas at STP is 1.25 g/L

4 0
3 years ago
Write the following in scientific notation. Include the unit or it will be marked wrong. a. 3450 meters b. 0.0000432 liters c. 5
Anvisha [2.4K]

Answer:

a. \: 3.450 \:  \times  \:  {10}^{3} \:  m \\  \\ b. \: 4.32 \:  \:  \times  \:  {10}^{ - 5}  \: l \\  \\ c. \: 5.06 \:  \times  \:  {10}^{5}  {cm}^{3}

8 0
3 years ago
Why did Dalton think it was important to use his system of symbols for the chemical elements?
Dimas [21]

Explanation:

to remind people that atoms were

4 0
4 years ago
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