the amount of heat need is 71060 Joules
ExplanationThe equation for the amount of heat needed to increase the temperature of water is as follows:
where E is the amount of heat
C is the specific heat capacity of water having a standard value of 4180 J/kg*K
T is the final ans initial temperature in kelvin
m is the mass
so
Step 1
given
a) convert the temperature into kelvin
now, replace in the formula
therefore, the amount of heat need is 71060 Joules
I hope this helps you
<span>Jun 16, 2012 - Given a temperature of 300 Kelvin, what is the approximate temperature in degrees Celsius? –73°C 27°C 327°C 673°C.</span><span>
</span>
Solubility is the ability to dissolve in liquids like water or organic solvents.
Malleability is the ability to bend and be hammered without breaking.
Ductility is when a material can be stretched into wires.
Answer:
Pressure of the gas is greater than the vapor pressure, therefore all the solid will not sublime.
Explanation:
To solve this problem we use ideal gas equation.
PV =nRT
If Presure of the gas (P) is greater than vapor pressure (56.5 atm), all the solid will not sublime. But If P < 56.5 atm, all of it will sublime.
where;
P is pressure of the gas in atm
V is volume of gas in Litre
T is absolute temperature of the gas in Kelvin
n is number of gas moles
R is ideal gas constant or Boltzmann constant = 0.082057 L atm K⁻¹ mol⁻¹
Given T = 20 °C = 273 + 20 = 293K
Volume = 0.25L
n = Reacting mas (m)/Molar mass(M)
Molar mass of CO₂ = 12 + (16X2) = 12+32 = 44g/mol
Reacting mass = 10g
n = m/M ⇒ 10/44
n = 0.2273
PV =nRT ⇒ P = nRT/V
P = (0.2273X0.082057 X293)/0.25
P = 21.8596 atm
Therefore, since Pressure of the gas is greater than the vapor pressure, all the solid will not sublime.
