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Nataliya [291]
3 years ago
10

Please help out I am having trouble answering this ?

Chemistry
1 answer:
padilas [110]3 years ago
4 0

Answer:

proton and neutron i think

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Some velomobile seats have been designed to hold ice packs inside their cushions. If you started a ride with ice packs that held
Cerrena [4.2K]

Answer : The heat energy absorbed will be, 1.23\times 10^5cal

Solution :

The process involved in this problem are :

(1):H_2O(s)(0^oC)\rightarrow H_2O(l)(0^oC)\\\\(2):H_2O(l)(0^oC)\rightarrow H_2O(l)(32.0^oC)

The expression used will be:

\Delta H=m\times \Delta H_{fusion}+[m\times c_{p,l}\times (T_{final}-T_{initial})]

where,

m = mass of ice = 1100 g

c_{p,l} = specific heat of liquid water = 4.18J/g^oC

\Delta H_{fusion} = enthalpy change for fusion = 6.01kJ/mole=6010J/mole=\frac{6010J/mole}{18g/mole}J/g=333.89J/g

Molar mass of water = 18 g/mole

Now put all the given values in the above expression, we get:

\Delta H=1100g\times 333.89J/g+[1100g\times 4.18J/g^oC\times (32.0-0)^oC]

\Delta H=514415J=122948.1358cal=1.23\times 10^5cal

Conversion used : (1 cal = 4.184 J)

Therefore, the heat energy absorbed will be, 1.23\times 10^5cal

7 0
3 years ago
Data Table 3: Polystyrene Test Tube, 12x75mm
Lera25 [3.4K]

Answer:

Experiment 8 E Data Table 3 fl Data Table 4 fl Data Table 5 fl Data Table 6 Data Table 3: Polystyrene Test Tube, 12x75mm Volume of water at room temperature (V1 in mL) Volume of gas in polystyrene tube at boil (V2 in mL) Temperature of gas at boil inside polystyrene tube (°C) Volume of gas in polystyrenetube at room temperature (V3 in mL) Temperature of gas.

Explanation:

Hope this helps

Mark as Brainliest please

4 0
3 years ago
Need help with this question
hichkok12 [17]
What question? Lhh this is hilarious.
4 0
3 years ago
Why do we use scientific notation or scientific exponential numbers in math calculations?
seraphim [82]
I believe the answer is: in order not to write very big or very small number values
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Find an element that has the same
navik [9.2K]

Answer:sodium

Explanation: because its not hard to look on the PERIODIC TABLE

4 0
3 years ago
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