Try looking at the question a little bit harder.
The answer is D because it uses the electrical energy from the wall to create heat (Thermal) energy for the clothes
Answer:
34 g of NH₃ were produced in the reaction
Explanation:
N₂ (g) + 3H₂ (g) → 2NH₃ (g)
Moles of N₂ → 28 g / 28 g/m = 1 mol
Moles of H₂ → 25g / 2 g/m = 12.5 moles
Clearly, the limiting is the nitrogen.
1 mol of N₂ produced 2 moles of ammonia
So, If I have 1 mol, I'll produce the same amount
2 moles of NH₃ = Mol . Molar mass
2 m . 17 g/m = 34 g
The question is based on the Thermodynamic principle of Specific Heat Capacity. Now, Specific Heat Capacity refers to the amount of heat needed per unit mass t raise the temperature by one degree Celsius
The formula that can be used to find the answer is the following:
Q = C · m · ΔT ( where Q is the heat added/required; C is the specific heat capacity [4.186 joule/gram °C]; ΔT is the change in temperature)
Based on the question, what needs to be found is Q, and what is known is that C = 4.186 J/g °C; m = 15 g; ΔT = 10 °C
so, Q = C · m · ΔT
Q = (4.186 J/g °C) (15 g) (10 °C)
Q = 627.9 J
Thus, the number of <span>joules required to raise the temperature of 15.0 grams of water by 10 degrees Celsius is 627.9 J</span>
If your bike isn't the right size, your legs could be rubbing up against the seat of your bike. The friction can chafe the skin on your legs. If you were to crash your bike, skidding on the ground can cause anywhere from minor scrapes to serious friction burns.
