Vectors include magnitude & direction so the third option is the correct answer :)
The final gas pressure : 175.53 atm
<h3>Further explanation</h3>
Maybe the complete question is like this :
A ridged steel tank filled with 62.7 l of nitrogen gas at 85.0 atm and 19 °C is heated to 330 °C while the volume remains constant. what is the final gas pressure?
The volume remains constant⇒Gay Lussac's Law
<em>When the volume is not changed, the gas pressure in the tube is proportional to its absolute temperature </em>
P₁=85 atm
T₁=19+273=292 K
T₂=330+273=603 K
Answer:
<h2>572320 J</h2>
Explanation:
The potential energy of a body can be found by using the formula
PE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
From the question we have
PE = 730 × 9.8 × 80
We have the final answer as
<h3>572320 J</h3>
Hope this helps you
Answer:
72·45 °C
Explanation:
Given
Mass of sample of aluminum is 500·0 g
Initial temperature is 25·0 °C = 298 K
Heat absorbed from surroundings is 32·60 kJ
Heat capacity of aluminum is 0·9 J/g K
Formula for amount of heat transfer is
<h3>Q = m × s × ΔT</h3>
where
Q is the amount of heat transfer
m is the mass of the substance
s is the heat capacity of the substance
ΔT is the change in temperature
Let the final temperature be T K
∴ 32·60 × 1000 = 500 × 0·9 × (T - 298)
T - 298 = 72·45
∴ T = 370·45 K = (370·45 - 298) °C = 72·45 °C
∴ Final temperature is 72·45 °C
Answer:
This is apparent charge, like water molecule is neutral having zero net charge
Explanation:
Simple and understood