Answer: a) 0.070 moles of oxygen were produced.
b) New pressure due to the oxygen gas is 2.4 atm
Explanation:
According to ideal gas equation:
P = pressure of gas = 2.7 atm
V = Volume of gas = 700 ml = 0.7 L
n = number of moles = ?
R = gas constant =
T =temperature = 329 K
Thus 0.070 moles of oxygen were produced.
When the 700 mL flask cools to a temperature of 293K.
The new pressure due to the oxygen gas is 2.4 atm
Answer:
Explanation:
<em>Specific Heat:</em><em> </em>The specific Heat of any material is the heat absorbed or evolved by the material to raise or fall it's temperature by 1°C per unit mass of the material.
The heat absorbed or evolved (Q) is directly proportional to the mass of substance(m) and rise or fall of temp(∆T)
The general formula for specific heat is,
Where
<em>Now coming to your question,</em>
<em>The specific heat of Aluminium is 897 J/kg °C</em>
<em>The specific heat of Aluminium is 897 J/kg °C& specific heat of methanol is 2450 J/kg ° C</em>
The definition states that, <u>if the specific heat would be more, more amount of heat will be required for per unit change in temperature.</u>
The specific heat of Aluminium is 897 J/kg °C which means for one kilogram aluminium, 897 Joule energy is required to change it's temperature by 1°C & Similarly for one kilogram methanol 2450 joule energy is required.
Hence, the correct answer would be methanol!
<em><u>learn more about specific heat here,</u></em>
<em><u>brainly.com/question/27365354</u></em>
<em><u>brainly.com/question/27598037</u></em>