CIE May/June 2015 resources updated.

Messages
3
Reaction score
0
Points
1
Calculate the standard enthalpy change of formation of CS2 from the following data.
Include a sign in your answer.
standard enthalpy change of combustion of CS2 = –1110 kJ mol–1
standard enthalpy change of formation of CO2 = –395 kJ mol–1
standard enthalpy change of formation of SO2 = –298 kJ mol
 
Messages
5
Reaction score
0
Points
1
From where can we get the names of students who got distinctions? Will the name of students getting distinctions be published anywhere ? How many types of distinctions are there? Can a regular candidate find his result by himself ?
 
Messages
1
Reaction score
0
Points
1
as physics help please guys
Please help me these question


A student, standing on the platform at a railway station, notices that the first two carriages of an arriving train pass her in 2.0s, and the next two in 2.4s. The train is decelerating uniformly. Each carriage is 20 m long. When the train stops, the student is opposite the last carriage. How many carriages are there in the train?
 
Messages
5
Reaction score
0
Points
1
Is the answer 72?
as physics help please guys
Please help me these question


A student, standing on the platform at a railway station, notices that the first two carriages of an arriving train pass her in 2.0s, and the next two in 2.4s. The train is decelerating uniformly. Each carriage is 20 m long. When the train stops, the student is opposite the last carriage. How many carriages are there in the train?
 
Top